Ecodry
EDK
Closed loop adiabatic liquid cooler
PROFILE The Ecodrygel EDK employs an innovative adiabatic
of water evaporation without any direct contact with
system that allows the cooler to operate in any kind
the finned, coil pack thus eliminating any risk of calcium
of environmental condition making it a valid alternative
deposits at the cooler. The EDK features Frigel’s worldwide
to traditional cooling systems (chillers, evaporative cooling
patented, “Adiabatic Chamber”, an innovative geometry
towers, natural sources etc.) with remarkable savings
of humidifiers guaranteeing high relative humidity of the
of electricity and water and the greatest respect
air crossing the cooling coils, thus MAXIMIZING THE
for the environment.
EFFICIENCY of the cooler.
OPERATIONAL ADVANTAGES
Power savings
“Clean” Closed-Loop function, minimal operating
The EDK Features brushless fan motors with speed controls
costs, quick and simple maintenance, modular
that offer outstanding
design, parallel (P) and serial (S) configurations,
reduction in noise levels,
and glycol-free self-draining models.
increased reliability and
OPERATIONAL SAVINGS Water Savings
longer life, and REDUCE energy consumption by more than a third over traditional step or triac controls. OPERATING EXPENSES
The EDK Cooler operates, for most of the year, without consuming additional water and only during the hottest days does it automatically activate the adiabatic system in order to pre-cool the incoming air. This system allows a minimum quantity
-41% AC MOTOR EC BRUSHLESS
Intelligent Process Cooling
WORKING PRINCIPLE
Operations in Adiabatic Mode AIR OUTLET
Water Temperature in Main Cooling Ring HEAT EXCHANGER COOLED AIR NO WATER HUMIDIFYING AND DROPLET SEPARATOR ADIABATIC CHAMBER
R
LE
T
AI T
AI
R
LE
IN
IN AIR INLET
PATENTED
A Finned Coil Heat Exchanger cools the water flowing
The quantity of water
through the coil by simple ambient airflow across the
consumed is controlled
coils, produced by special brushless fans (23,000 m /h -
by a microprocessor.
13,600 cfm per fan).
Water is nebulized at a
As the ambient air temperature increases, the Adiabatic
rate up to 1,5 liters/min -
Chamber, Frigel’s international patent, activates and
0,4 gallons/min of water
cools the air by Evaporation.
per fan guaranteeing total
The hot, dry air passing through the Adiabatic Chamber
evaporation within the air
is humidified and saturated by misted water sprayed
flow before reaching the
inside the Chamber, reducing its temperature to within
finned coil pack.
the Wet Bulb range.
The Adiabatic System cycles on and off automatically,
There are two great advantages of the Adiabatic
via a microprocessor in the PMR Control Panel.
Chamber:
This system guarantees leaving water temperatures
3
No bacterial contamination of water (i.e. Legionella)
between 35°C / 95°F throughout the year in any climate. It is the most efficient system to increase the relative humidity of air It prevents any water from escaping the Chamber, thus eliminating any risk of scaling on the coil or creating dangerous water drifts - potentially contaminated by bacteria. In this way, the coil is kept completely dry and free from impurities, thereby maintaining its efficiency.
MODELS
WITH GLYCOL
SELF-DRAINING WITHOUT GLYCOL EDK EDK
EDK EDK
ESESSS RORCOC TOTPO P
PMR PMR
SS CECSES PRPORO MM FRFORO
PMR PMR
SS OCOECSES TOTPORPR ESESSS PRPORCOC FRFORMOM
GPR GPR
GPS GPS
GPS GPS
GPP GPP
FILTER FILTER
FILTER FILTER
GPP GPP
Standard version with glycol “S” and “P” models:
Self-draining version without glycol model “D”
EDK can be provided in either the S (serial) or P (parallel)
and “DS”:
version, depending on operating conditions and
When the unit is off and/or during power black-outs,
the ∆T required.
the entire contents of the coil and pipes empty automatically through simple force of gravity, without valves or servo controls, making this system the most reliable. The “D” and “DS” models function simply with water, without requiring glycol, even when the ambient temperatures reach the freezing point, with the following advantages: - Respect for the environment; - Greater cooling capacity, since anti-freeze lowers the thermal exchange coefficient; - Use where anti-freeze additives are not allowed. The choice between “D” and “DS” depends upon the
Full-Wet version for hot/desert climate: allows substantial savings in water, obtained by adding a Kit Full-Wet (KFW) and includes tank and pump that allows the recovery and reuse of not evaporated water. Dry version: A Dry version is also available without adiabatic chamber to achieve free-cooling of refrigeration systems with central chiller.
weather ambient conditions of the location.
TECHNICAL FEATURES
DIE-CAST ALUMINUM axial fans with brushless motors and speed controls, protected against over or under voltage, overheating, overloading and lack of phase. ELECTRICAL PANEL with European standard (n°60204/1) and UL listing by request. Each machine is designed to be easily connected to the remote control panel. Standard supply voltages: 400V/3/50 Hz and 460V/3/60Hz. High-efficiency ADIABATIC CHAMBER (Frigel PCT Patent No. WO 2007/015281) is designed to guarantee maximum humidification of inlet air at the coils and minimal water usage with no drifts. ALUMINUM FINS COPPER PIPE COILS with large pitch and straight foils (not corrugated) to insure a free flow of air preventing dust and dirt from accumulating on the coils.
FRAME AND HULL made entirely from stainless materials (stainless steel/aluminum). DELIVERY AND RETURN STAINLESS STEEL MANIFOLDS with Victaulic flanged connections, for quick, easy installation and expansion.
ACCESSORIES AND OPTIONALS CONTROL PANEL (PMR-G) The input screen and remote control panel, with highly visible temperature display, wide alphanumeric screen, shows all working parameters and eventual alarm signals and diagnostics (see the “PMR” brochure for more information).
Head Quarters: Frigel Firenze SpA Via Pisana, 316 50018 Scandicci (Italy) Ph +39 (055) 722-0920 Fax +39 (055) 731-1271 E-mail: sales@frigel.it
www.frigel.com
Frigel North America Inc. 150 Prairie Lake Rd, Unit A East Dundee, IL 60118 USA Ph +1 (847) 540-0160 Fax +1 (847) 540-0161 E-mail: sales.fna@frigel.com
Converters for 220V 50Hz / 60 Hz Visual Alarm Aquagel Pumping Stations: modular pumping sets and stainless steel tanks available for “turn-key” installations (see the “Aquagel” brochure for more information).
Frigel North Italy branch E-mail: sales.italia@frigel.it Frigel Asia-Pacific ltd. E-mail: fapsales@frigel.it
Intelligent Process Cooling